Rear Axle Compatibility

[nobby]

So i picked up on some website possible differences in the FF Rear Axle in that a company listed install kits for 1988-1997 and then 1998-2017. I was assuming that this more an internal thing. However i am looking at axle swapping the donor is a 1999 Suburban Full Float, will this be a direct bolt into my 1997 that currently has the 14 bolt semi?

Cheers
Nobby

 

[dbrannon79]

I believe it should be a direct swap. just check the spring and shock perch placements on both to verify. the yolk might use a different size u-joint, but the conversions should be readily available too.

 

[MrMarty51]

Might have to change backing plates and emergency brake cables for the emergency brakes.
The park brake cables could be different in lengths and styles.

 

[DieselAmateur]

If it was a 2500 suburban, it may have the 3.5" rear shoes which is a nice little upgrade as the 2500 pickups only had the 2.5" shoes. As Doug suggested verify that the spring perches are the same width which I think they should be. I swapped the rear end from a 1999 2500 onto my '95 2500 with no issue so you are probably good to go in terms of frame geometry.